exported
necessary
umbilical
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Umbilical
Generated on 2026-04-13
Natural Language Definition
EN
An umbilical is an assembly that is a flexible and easily disconnectable bundle containing both cables and tubing for multi-service transmission including control, power, communication, and chemical injection.
PT-BR
Um umbilical é uma montagem que é um feixe flexível e facilmente desconectável contendo cabos e tubulação para transmissão de múltiplos serviços incluindo controle, energia, comunicação e injeção química.
Formal Axioms
Semi-formal (Aristotelian)
Every umbilical is an assembly that has component parts including cable bundles and tubing bundles, and has the qualities of flexibility and easy disconnectability.
First-Order Logic Theory
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▸ Stored override
∀x (Umbilical(x) → Assembly(x) ∧ ∃c,t,s,conn (CableBundle(c) ∧ TubeBundle(t) ∧ ProtectiveSheathing(s) ∧ ConnectorAssembly(conn) ∧ hasComponentPartAtAllTimes(x,c) ∧ hasComponentPartAtAllTimes(x,t) ∧ hasComponentPartAtAllTimes(x,s) ∧ hasComponentPartAtAllTimes(x,conn) ∧ hasQuality(x,Flexibility) ∧ hasQuality(x,EasyDisconnectability)))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: Umbilical
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-08"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000584 rdf:type owl:Class ; # MultiServiceTransmissionFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000585 # MultiServiceTransmissionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000585 # MultiServiceTransmissionProcess
] ;
rdfs:label "multi service transmission function"@en ;
rdfs:label "função de transmissão de múltiplos serviços"@pt-br .
### Process type
:COPI_0000585 rdf:type owl:Class ; # MultiServiceTransmissionProcess
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "multi service transmission process"@en ;
rdfs:label "processo de transmissão de múltiplos serviços"@pt-br .
:COPI_0000585 # MultiServiceTransmissionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom iof-core:InformationContentEntity
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom iof-core:InformationContentEntity
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: Umbilical
:COPI_0000367 rdf:type owl:Class ; # Umbilical
rdfs:subClassOf iof-core:Assembly ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000584 # MultiServiceTransmissionFunction
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasComponentPartAtAllTimes ;
owl:someValuesFrom :COPI_0000700 # CableBundle
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasComponentPartAtAllTimes ;
owl:someValuesFrom :COPI_0000732 # TubeBundle
] ;
rdfs:label "umbilical"@en ;
rdfs:label "umbilical"@pt-br ;
iof-av:naturalLanguageDefinition "An umbilical is an assembly that is a flexible and easily disconnectable bundle containing both cables and tubing for multi-service transmission including control, power, communication, and chemical injection."@en ;
skos:definition "An umbilical is an assembly that is a flexible and easily disconnectable bundle containing both cables and tubing for multi-service transmission including control, power, communication, and chemical injection."@en ;
iof-av:naturalLanguageDefinition "Um umbilical é uma montagem que é um feixe flexível e facilmente desconectável contendo cabos e tubulação para transmissão de múltiplos serviços incluindo controle, energia, comunicação e injeção química."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every umbilical is an assembly that has component parts including cable bundles and tubing bundles, and has the qualities of flexibility and easy disconnectability."@en ;
iof-av:firstOrderLogicAxiom "∀x (Umbilical(x) → Assembly(x) ∧ ∃c,t,s,conn (CableBundle(c) ∧ TubeBundle(t) ∧ ProtectiveSheathing(s) ∧ ConnectorAssembly(conn) ∧ hasComponentPartAtAllTimes(x,c) ∧ hasComponentPartAtAllTimes(x,t) ∧ hasComponentPartAtAllTimes(x,s) ∧ hasComponentPartAtAllTimes(x,conn) ∧ hasQuality(x,Flexibility) ∧ hasQuality(x,EasyDisconnectability)))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Constructive basis requires necessary conditions only. Under OWA, any assembly with cables, tubing, flexibility, and disconnectability could be forcibly classified as umbilical, including specialized multi-service bundles, complex wiring harnesses, or custom transmission assemblies that contain these elements but serve different industrial contexts and maintenance categories."@en ;
skos:definition "[ISO 15926-4] A <UMBILICAL> is a <DRILLING COMPONENT> that is a flexible and easily disconnectable collection of cables and/or tubing for control, power, communication or chemical injection purposes."@en ;
skos:definition "[CFIHOS] An assembly of hydraulic hoses which can also include electrical cables or optic fibres, used to control a sub sea structure or remote operated vehicle from a platform or a vessel."@en ;
skos:definition "[OnePetro] A control line attached to a remove piece of equipment, usually a subsea wellhead, to provide hydraulic or electrical control, or inject small amounts of chemicals."@en ;
skos:definition "[POSC Caesar] A device which is a flexible and easily disconnectable collection of cables and/or tubing for control, power, communication or chemical injection purposes."@en .
:COPI_0000700 rdf:type owl:Class ; # CableBundle
rdfs:subClassOf iof-core:Assembly ;
rdfs:label "feixe de cabo"@pt-br ;
rdfs:label "cable bundle"@en .
:COPI_0000732 rdf:type owl:Class ; # TubeBundle
rdfs:subClassOf iof-core:Assembly ;
rdfs:label "feixe tubular"@pt-br ;
rdfs:label "tube bundle"@en .
# Disjointness: Umbilical and Pipe
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000367 :COPI_0000321 ) . # Umbilical, Pipe
# Disjointness: Umbilical and Hose
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000367 :COPI_0000296 ) . # Umbilical, Hose
Axiomatization Decision Log
1
Identity-Giving Function
Function class
MultiServiceTransmissionFunction
⊑ DesignedFunction
Realized in
MultiServiceTransmissionProcess
⊑ PlannedProcess
Umbilicals are designed to simultaneously transmit multiple types of services (hydraulic control, electrical power, communication signals, chemical injection) between remote locations. This multi-modal transmission capability is their core functional identity, though the specific configuration defines the constructive type.
2
Genus Determination
Assembly
bfo:Object (BFO_0000030)
Causally unified material artefact composed of physically connected,
separable MaterialComponent parts. Satisfies
Assembly ⊑ MaterialArtifact ⊑ bfo:Object.
No appropriate domain-specific superclass exists in the parent candidates (DRILLING COMPONENT is too narrow, miscellaneous equipment too vague, Artefact too broad). Umbilicals are clearly assemblies composed of multiple physically connected components (cables, tubing, protective sheathing, connectors) that can be disassembled for maintenance, forming a single causally unified object. No enriched genus available, so using IOF-Core Assembly directly.
3
Necessary Parts
| Part class | Parent | Relation |
|---|---|---|
| CableBundle | Assembly | hasComponentPartAtAllTimes |
| TubeBundle | Assembly | hasComponentPartAtAllTimes |
These parts are essential to umbilical identity: cable bundle for electrical services, tubing bundle for fluid services, protective sheathing for environmental protection, and connector assemblies for the characteristic easy disconnection capability.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
InformationContentEntity
— control, power, or communication signals
PortionOfFluid
— hydraulic fluid or chemical injectants
Outputs (O)
InformationContentEntity
— transmitted to remote equipment
PortionOfFluid
— delivered to remote control points
Transformation (T)
transmission and routing of multiple service types with no alteration of signal/fluid properties
Umbilicals provide multi-modal transmission without transformation - they route electrical and fluid services from control points to remote equipment while preserving signal integrity and fluid properties.
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
Constructive basis requires necessary conditions only. Under OWA, any assembly with cables, tubing, flexibility, and disconnectability could be forcibly classified as umbilical, including specialized multi-service bundles, complex wiring harnesses, or custom transmission assemblies that contain these elements but serve different industrial contexts and maintenance categories.
Disjointness Axioms
Pipe
Hose
C4: Pipe, Hose. Signature incompatibility: pipes provide single-service fluid transport, cables provide single-service electrical transmission, hoses provide single-service flexible fluid transport, while umbilicals provide multi-service flexible transmission combining both electrical and fluid capabilities.
Cross-Standard Observations
Consistent emphasis across sources on flexibility and disconnectability. ISO15926 and POSC Caesar emphasize the cable/tubing collection nature, while CFIHOS and OnePetro focus more on subsea control applications. All sources agree on multi-service capability (control, power, communication, chemical injection).
